Porkpie

A pork pie is a traditional British meat pie made from seasoned pork filling and jelly encased in a pastry crust.  The porkpie hat is so called because of the resemblance of its crown to a pork pie.  The hat was famously worn by the silent film comedian Buster Keaton, and more recently by Gene Hackman's character Jimmy "Popeye" Doyle in The French Connection (1971).  Pork pie hats are now most often associated with blues and jazz musicians.